Consider a toy block cipher with a block size of $16$ bits. The cipher is being used in Cipher$$Block Chaining Message Authentication Code $($CBC$-$MAC$)$ mode to provide integrity of$$the message. Alice uses this toy block cipher with a shared secret key, K and an$$initialization vector $($IV$),$ V to generate a message authentication code $($MAC$)$ tag, T on the$$message M$,$ as shown below $($in hexadecimal representation$).$ The message M consists of$$two blocks: block $0$ and block $1$ represented with M$0$ and M$1,$ respectively